Tennessee State Route 438
| TN 438 highlighted in red | ||||
| Route information | ||||
| Maintained by TDOT | ||||
| Length | 41.0 mi (66.0 km) | |||
| Major junctions | ||||
| West end | US 412 / SR 100 near Perryville | |||
| SR 13 in Lobelville | ||||
| East end | SR 50 near Centerville | |||
| Location | ||||
| Country | United States | |||
| State | Tennessee | |||
| Counties | Perry, Hickman | |||
| Highway system | ||||
| 
 | ||||
State Route 438 (SR 438) is a 41.0 miles (66.0 km) long east-west state highway in extreme western Middle Tennessee.
Mousetail Landing State Park is located along SR 438 near its western end.